Lizzie Replaces Mike in His Job at National Business Corporation

Lizzie replaces Mike in his job at National Business Corporation (NBC) .Mike believes that he has been discriminated against on the basis of his age.For the Age Dis-crimination in Employment Act of 1967 to apply​

A) all parties must be forty years of age or younger.
B) Lizzie must be forty years of age or older.
C) Mike must be forty years of age or older.
D) Mike must have been an NBC employee for at least forty years.